Gmail app.. any way to compose from one of the "send as" addresses?

[mallinj]

I'm a big Gmail proponent and use it for a number of different email addresses. On my phone, it works great.. but, I'd like to be able to send from an address other than my default address. Is there a setting somewhere to enable this?

Sorry if it's right in front of my face but I'm less than 24 hours into Android.. but loving it.